#include <57header.h>

int main(int argc,char*argv[])
{

    int pipe_fd = open("1.pipe", O_RDONLY);

    while(1){
        char buf[1024] = {0};

        read(pipe_fd, buf, sizeof(buf));

        printf("read once \n");
        sleep(2);
    }

    return 0;
}

